@article{1990422, title={Robustness Analysis of an Adaptive D. C. Servo System with a Velocity Reference Model}, author={Kazuhisa MITOBE and Norihiko ADACHI}, journal={Transactions of the Institute of Systems, Control and Information Engineers}, volume={3}, number={12}, pages={422-430}, year={1990}, doi={10.5687/iscie.3.422} }